No more tag sharing at Sha?

So a friend was in the group that tagged sha, so in order to share this tag with me, he left his group (after he hit the boss ofc) and invited me.
I attacked the Sha and he was 'red' all the time for me, but in the end I did not get any loot.

Anyone of you experienced the same after the patch? Did it still work for you today?

Yesterday evening I was able to get tag after a friend dropped from a tagged Raid. Were you killed before he was defeated? I once had the unfortunate circumstance of dying and releasing- only to watch Sha die as I was running back to my corpse. Did not get a bag or chance to bonus roll, as I was probably too far away.

At the end of our raid last night we took our 25 raiders and pulled in ~10 pugs from chat, got a tag share from another group. It worked for some of us, didn't work for others. I am not sure what differentiates those who it worked for and those it didn't, and yes, there were people who were at Sha, alive, and dealt damage to him that did not get the tag.

Raid x had tag. A player from raid x left and I invited him to raid y. I was unable to get the tag but the player who joined raid y still had the tag during the entire time and also got loot at the end.
I don't know if it worked for other people in raid y but it didn't work for me. I was alive during the whole time and did damage from 60% to 0% without any cc on me.

This was yesterday 5decembre on EU server.
Maybe we just did it wrong. There are few alliance on my server and it only happens once on reset day at 6pm that alliance is able to make 2 full raids.

Raid x had tag. A player from raid x left and I invited him to raid y. I was unable to get the tag but the player who joined raid y still had the tag during the entire time and also got loot at the end.
I don't know if it worked for other people in raid y but it didn't work for me. I was alive during the whole time and did damage from 60% to 0% without any cc on me.

This was yesterday 5decembre on EU server.
Maybe we just did it wrong. There are few alliance on my server and it only happens once on reset day at 6pm that alliance is able to make 2 full raids.

The player with the tag has to do the inviting otherwise it won't work